Eyelash serums: A beauty expert warns about these ingredients that can darken the eyelid
Eyelash serums have become a staple of beauty routines. Yet behind the promise of longer, fuller lashes lie questions that many quietly ask themselves: are these products, applied so close to the eyes, really safe?
A craze that has consumers wondering
In recent years, eye care products have grown in popularity. eyelash serums have thus established themselves as a routine step in their own right, just like an anti-aging serum or a facial treatment.
The promise is simple: longer, thicker, and stronger lashes after several weeks of daily use. However, this appealing promise has been met with a growing number of questions about the ingredients in these products.
According to Google data analyzed by Fresha, a leading beauty and wellness booking platform, searches related to the side effects of these treatments have increased by 95% over the past year. Last month alone, this topic generated 8,000 search queries on the search engine.
Why the increase in searches in 2026?
For Danielle Louise, a beauty expert at Fresha, this trend reflects a growing awareness. Consumers are increasingly concerned about what they apply near their eyes, a particularly sensitive area.
Furthermore, as these products have flooded the shelves of specialty stores, the demand for information about their ingredients has also grown. The eye area is not like any other part of the face: it deserves special attention.
“Consumers are increasingly concerned about the ingredients in products applied near the eyes, a particularly sensitive area.” — Danielle Louise, beauty expert at Fresha
Side effects you shouldn’t ignore
Some eyelash serums contain prostaglandin analogs, such asisopropyl cloprostenate. These active ingredients are used for their ability to stimulate the growth of eyelashes and eyebrows.
However, they have also been linked to concerning side effects. These include irritation, darkening of the eyelid, and changes in the color of the iris.
Therefore, before purchasing a product with promising results, it’s best to understand exactly what’s in its formula. Not all eyelash care products are created equal: some simply nourish the lashes, while others rely on much more powerful active ingredients.
Two main product categories
It is essential to distinguish between a nourishing serum and a serum containing potent active ingredients. Any product that promises rapid and dramatic growth should be examined closely before use.
So, taking the time to read the list of ingredients isn’t a waste of time. On the contrary, it’s the first step you should take to protect an area as delicate as the eye contour.
- Check the list of ingredients for the presence of prostaglandin analogs.
- Be wary of promises of overly rapid growth.
- Perform a patch test beforehand when recommended.
- Follow the product instructions carefully.
- Do not use multiple new eye care products at the same time.
Tips for using these products safely
Danielle Louise recommends checking the ingredient list before purchasing any eyelash serum. The presence of prostaglandin analogues should be a cause for concern, especially for people with sensitive eyes.
In addition, it is essential to follow the instructions for use carefully. A patch test, when recommended by the manufacturer, can help reduce the risk of an adverse reaction.
If you experience redness, irritation, or visible changes around the eyes, the expert recommends stopping use immediately. If symptoms persist, consulting a healthcare professional is the best course of action.
In addition, it’s best to avoid trying out several new eye care products at the same time. This simple precaution makes it easier to identify the cause of any adverse reaction. Eyelash serums can be valuable allies for your eyes, provided you choose and use them wisely.
